Metallic-surfaced roofing and process of making same



" Jan. 8; 1929. 1,698,267

' KIRSCHBRAUN v Q I METALLIC SURFACED ROOFING AND PROCESS OF MAKING SAME Filed Dec. 26, 1922 INVENTQR A; ATTORNEYS Patented 8, .1929.

i UNITED STATES PATENT OFFICE.

Lnsrna msonnnaun, or cmoaoo, rumors, ASSIGNOR; BY mnsnn' ASSIGNMENTS,

1 r ,snaco'nmi WARE.

SALES COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELLA.-

HETALLIC-SURFACED ROOFING AND PROCESS MAKTNG SAME.

Application filed December 26, 1922. Serial No. 608,885.

This invention relates to a metallic surfaced i roofing and refers more particularly to a prepared roofing having a metallic surfacing and backed with a bituminous composition havingwaterproofing characteristics.

Among the salient objects of the invention are to provide a roofing which is more weather resistant than the plain felted material coated with bituminous or asphaltic substance, roofing which is more rigid in character and Wlll not curl or warp due to varying weather conditions, and in general to provide a product of the character referred to.

In the accompanying drawings I have illustrated my improved roofing material, together with the-apparatus by which it may be produced, and in these drawings,

Fig. 1 is a view in perspective of one form of the roofing,

Fig. 2 is a view in perspective of another type, parts being broken away to show the construction more clearly, and I Fig. 3 is a diagrammatic view of ap aratus for carrying out the process of makin these roofing elements.

Disclosing now the process for making a roofing of this character, an emulsion is first mixed consisting of a bituminous or asphaltic substance which is heated to liquid condition andcombined with clay and water to form a bituminous emulsion havin the adhesive bituminous particles in the internal phase surrounded by films of non-adhesive emulsitying agent in an aqueous vehicle such as 1,302,810 issued May 6th, 1919.

This emulsion is mixed with a fibrous material such-as asbestos or waste paper stock in such proportions as to produce a plastic and easy spreading composition. The mastic substance on a. dry basis comprises approximately 70 parts of asphalt, 20 parts of clay and 10 parts by weight of fibre. These com: ponents may of course, be varied according 44$ to the character of the sheet it is desired to produce and variations may also arise due to the character of the bitumen employed.

Referring nowto these drawings, a weather resistant metal sheet 4 having upturned lat eral edges 5, shown more clearlyin Fig. *2, is fed beneath the reservoir -6 containing the emulsion composition and the 'composltion spread in a uniform layer 7 on the space between the upturned edges of the metal'sheet. In order to show more clearly the action oft-the rolls, the upturned edge on the sheet 4c has been broken away in Fig. 3.

The combination is then passed between pressure rolls 8, 8 in order to compact the com- Fig. 1 the element is illustrated withthe asphaltic base material uppermost for the sake of clearness, butitis to be understood that when the element is'laid in place on the roof the as'phaltic material lies underneath and the metallic layer is exposed to the weather. In Fig. 2 there is shown an element in which the edge 5 of the metal is turned at an angle to the metal sheet so as to cover the end of the asphaltic layer. This element is one formed by cutting the main sheet lengthwise and crosswise, and it is to be laid in place on the roof with the metallic edge 5 at the exposed end of the element. In this way the metal covers the exposed face of the element a and the exposed on 35 that described in detail in my Patent No.

Any weather resisting metal, suchas copper, zinc, aluminum or lead may be employed.

The sheet-after running over board rolls may be cut by cutting devices such as are diagrammatically indicated at 12 in Fig. 3 into any desired configuration to form single shingle units, as shown in Figs. 1 and 2, or strip shinglesof any desired character as, for example, those having the shape and size of the three or four unit shingles. The thickness of the metallic surfacing may vary according to the requirements of the roofing desired, but sheets ranging from .003 to .005 inches are suflicient to endure for a considerable period of years. Roofingof this char- "acter has not only the advantage of a bituminous repared roofing, but also the weather resisting qualities of the metal. The metal also gives it rigidity that is not present in the prepared bituminous shingle made with felt or fibrous base.

I claim as m invention:

1. A metho of making roofing elements which comprises forming up-turned lateral flanges along opposite edges of a weatherresistant metallic sheet, moving the sheet lengthwise in a direction parallel to the flanges and, while itis in motion, continu ously distributing a waterproof bituminous mastic in a plastic condition over the face, of the sheet between the flanges, subjecting the sheet and mastic to pressure to compact the mastic to form a la er of uniform density, and subjecting the 5 met and layer t'olheat to cause the la er to adhere to the metal.-

2. A roo ng unit comprising a weather-t resistant, metallic sheet having a flange extending substantially at right angles tofthe face of the sheet along one edge thereof, and a body of dried and hardened bituminous mastic including an emulsifying agent and a fibrous material aflixed to the face of the sheet from which the flan e extends, the

width of the flange being su cient to afior'd substantial protection to the edge of the body with which the flange is in contact.

3. A method of making roofing material which comprises placing aweather-resis'tant metallic sheet in motion endwise and, while the sheet is moving, distributing over one surface thereof a waterproof mastic including a bituminous emulsion in intimate mixture witha fibrousv material, subjecting the moving sheet with the mastic thereon to pressure to distribute the mastic material evenly and to compact it to form a layer of uniform densit and thereafter subjectipg the sheet with t e mastic thereon to heat'and' pressure to expel the moisture from the mastic and cause the latter fixedly adhere to themastic sheet.

' LESTER KIRSGHBEtAUN. 

